In order to master the influence of FAE warhead terminal state on the ground reflection pressure, the ground reflection pressure date of the FAE device with different angular, bursting height of cloud and second detonating position were obtained by simulation experiment, and the pressure distribution characteristics under different working conditions were analyzed. The results show that the larger the warhead angular is, the higher the ground reflection pressure is, and the distribution of pressure field is about uniform, at the angular of 90 degrees, the ground reflection pressure is the highest; the cloud burst height affects the ground reflection pressure inside and outside the cloud area, and there is an optimal burst height, which makes the pressure field optimal; with the increase of vertical distance and radial distance of the second detonating device, the ground reflection pressure first increases and then decreases.